#include "recomp.h"
#include <cstdio>
#include <string>
#include "../portultra/ultra64.h"
#include "../portultra/multilibultra.hpp"

#define VI_NTSC_CLOCK 48681812

extern "C" void osAiSetFrequency_recomp(uint8_t* rdram, recomp_context* ctx) {
    uint32_t freq = ctx->r4;
    // This makes actual audio frequency more accurate to console, but may not be desirable
    //uint32_t dacRate = (uint32_t)(((float)VI_NTSC_CLOCK / freq) + 0.5f);
    //freq = VI_NTSC_CLOCK / dacRate;
    ctx->r2 = freq;
    Multilibultra::set_audio_frequency(freq);
}

extern "C" void osAiSetNextBuffer_recomp(uint8_t* rdram, recomp_context* ctx) {
    Multilibultra::queue_audio_buffer(rdram, ctx->r4, ctx->r5);
    ctx->r2 = 0;
}

extern "C" void osAiGetLength_recomp(uint8_t* rdram, recomp_context* ctx) {
    ctx->r2 = Multilibultra::get_remaining_audio_bytes();
}

extern "C" void osAiGetStatus_recomp(uint8_t* rdram, recomp_context* ctx) {
    ctx->r2 = 0x00000000; // Pretend the audio DMAs finish instantly
}